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Conditional Access - Dynamic Group Exclusion Changes
Description
// Detects changes to Dynamic Membership Rules for specified groups (often used in CA exclusions)
- Rule type
- Scheduled
- Version
- 1.0.1
- Query frequency
- 5m
- Query period
- 5m
- Trigger
- gt 0
Declared MITRE coverage
Declared sources
Metadata from the source file. No dependencies inferred from KQL.
Connectors
Data types
KQL query
Original query, unchanged.
// Detects changes to Dynamic Membership Rules for specified groups (often used in CA exclusions)
let monitoredGroups = dynamic(["Group1", "Group2"]); // <-- Customize this list
AuditLogs
| where OperationName == "Update group"
| where AdditionalDetails[0].value == "DynamicMembership"
| extend DynamicGroupName = tostring(TargetResources[0].displayName)
| where DynamicGroupName in (monitoredGroups)
| extend modifiedBy = tostring(InitiatedBy.user.userPrincipalName)
| extend accountName = tostring(split(modifiedBy, "@")[0])
| extend upnSuffix = tostring(split(modifiedBy, "@")[1])
| extend oldRule = tostring(TargetResources[0].modifiedProperties[0].oldValue)
| extend newRule = tostring(TargetResources[0].modifiedProperties[0].newValue)
| where oldRule != newRule
| project
TimeGenerated,
OperationName,
DynamicGroupName,
modifiedBy,
accountName,
upnSuffix,
result = Result,
oldRule,
newRule
| order by TimeGenerated descDeclared entities
Related content
Links established from declared identifiers and solution manifests.
Source provenance
GitHubDisplayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.
- Commit
9800e51↗- Source identifier
c385944b-17b9-4b2b-921e-0e8d0341a675
GSTEP / CATALOG TRACKING
Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC